Oh society is pretty much sick to the core, and has been for some thousand years by now. Only difference being, that in earlier times, they didn't see the need to cover it up quite as much.
Anyways, to all those who wants nudity because of "realism and it is natural" It's a game. And the perspective of the game is neither realism, nor nudity for the sake of it. It doesn't serve a purpose as far as the scope of the game goes. I would be all for it, if it served a purpose, but it doesn't, in any meaningful way, regarding the story and the world of FO4. I dunno about the rest of you, I play to be entertained and to a degree escape the real world for a moment. I don't need to drag anything into a game, because it is how it is in the real world, and because, it is M rated or whatever. Those things can wait until I'm done playing.